Silverstars are not that great, and the "blue tint" is often irregular. Most people I know who have them, had one burn out within 6 months, I had my PIAAs from tirerack for over 2 yrs before 1 filament on the H4's died. The lights still work, only one side is a bit duller than the other. (I have the 'JDM' headlights) They maybe a bit more expensive initially but Tirerack also has a wide selection of matching bulbs for turn signals/backup lights and corner markers